﻿using System;
using System.Collections.Generic;
using System.Text;

namespace Vortex.Utils {

	///<summary>Provides better global interface for getting Random values</summary>
	public static class RandomUtils {
		private static Random _random = new Random();

		/// <summary>
		/// Shuffles random.
		/// </summary>
		public static void Shuffle() {
			_random = new Random((int)DateTime.Now.Ticks);
		}

		/// <summary>
		/// Return next int from range 0..maxValue
		/// </summary>
		/// <param name="maxValue">The maximal value of range.</param>
		/// <returns>Returns next random from range</returns>
		public static int NextInt(int maxValue) {
			return _random.Next(maxValue);
		}

		/// <summary>
		/// Return next int from range minValue to maxValue
		/// </summary>
		/// <param name="minValue">The min value of range.</param>
		/// <param name="maxValue">The max value of range.</param>
		/// <returns>Returns next random from range</returns>
		public static int NextInt(int minValue, int maxValue) {
			return minValue + NextInt(maxValue - minValue);
		}

		/// <summary>
		/// Return random float from range 0..1
		/// </summary>
		/// <returns>Returns next float from range</returns>
		public static float NextFloat() {
			return (float)_random.NextDouble();
		}

		/// <summary>
		/// Return random float from range 0..maxValue
		/// </summary>
		/// <param name="maxValue">The max value of range.</param>
		/// <returns>Returns next float from range</returns>
		public static float NextFloat(float maxValue) {
			return maxValue * NextFloat();
		}

		/// <summary>
		/// Return random float from range 0..maxValue
		/// </summary>
		/// <param name="minValue">The min value of range.</param>
		/// <param name="maxValue">The max value of range.</param>
		/// <returns>Returns next float from range</returns>
		public static float NextFloat(float minValue, float maxValue) {
			return minValue + NextFloat(maxValue - minValue);
		}

		/// <summary>
		/// Return random double from range 0..1
		/// </summary>
		/// <returns>Returns next double from range</returns>
		public static float NextDouble() {
			return (float)_random.NextDouble();
		}

		/// <summary>
		/// Return random double from range 0..maxValue
		/// </summary>
		/// <param name="maxValue">The max value of range.</param>
		/// <returns>Returns next double from range</returns>
		public static float NextDouble(float maxValue) {
			return maxValue * NextDouble();
		}

		/// <summary>
		/// Return random double from range 0..maxValue
		/// </summary>
		/// <param name="minValue">The min value of range.</param>
		/// <param name="maxValue">The max value of range.</param>
		/// <returns>Returns next double from range</returns>
		public static float NextDouble(float minValue, float maxValue) {
			return minValue + NextDouble(maxValue - minValue);
		}
	}
}
